mole fraction + molality + molarity

what does mole fraction represent?

the number of molecules of a particular component in a mixture divided by the total number of moles

what is the mole fraction another expression of?

of the concentration of a solution

what is mole fraction used to describe?

used to describe gas concentrations and vapor pressure of mixtures of similar mixtures

mole fraction:

mole fraction = mole component/total moles

what does the molarity of a solution change with and why?

w/ temp bc the contraction of expansion of the solution changes the volume

why is molality used?

used bc masses don’t change w/ temp

what is molality more useful to describe?

describe solutions in terms of how many moles of solute r dissolved in a specific mass of solvent